People often confuse bariatric surgery with liposuction and when they hear that diet will be less, they think that dieting alone will work but bariatric surgery offers you fast and more sustained blood loss due to hormonal changes associated with it. Not only after bariatric surgery people who are binge eaters, stop eating excess food but due to hormonal changes, the diseases associated with obesity like Type 2 Diabetes Mellitus, Hypertension, Obstructive sleep apnea, PCOD (infertility), and others show marked improvement, that some of the patients may not need even medicines for their diseases, so bariatric surgery adds healthy years to your life.

Liposuction is not a weight loss procedure but rather it produces inch loss and is a cosmetic procedure and not for morbidly obese and no disease is controlled after it and food craving is same.

In dieting, you are feeling hungry but you eat less, so it cannot last for life long and once you start eating, whole weight comes back.

The following table compares the three modalities.

Parameter Dieting Alone Liposuction Bariatric Surgery
Weight Loss Slow (10%) Minimal Fast, More and sustained (70%)
Regain of weight Very high chances Always Very less chances
Hormonal changes No No Yes
Resolution of diseases No No Yes
Improvement in Quality of life Yes No Yes a lot
Decrease In Mortality No No Yes